Lp920 Remote Bulb Temperature Controllers; Remote Bulb; Two-Pipe - Honeywell Pneumatic Controls Engineering Manual

Temperature Controllers

LP920 Remote Bulb Temperature Controllers

Dimensions in inches (millimeters)
5-9/16 (142)
3-1/8
(80)
2-3/4
(70)
2-11/16
(68)
Application: Remote Bulb Temperature
Airflow Usage: 0.011 scfm (5.2 mL/s)
Maximum Operating Temperature: Element: 230 F, Controller: 150 F
(Element: 110 C, Controller: 66 C)
Maximum Storage Temperature: 150 F (66 C)
Maximum Operating Pressure: 30 psi (207 kPa)
Throttling Range: Factory set at 10 F with adjustment range of 5 to
25 F (Factory set at 6K with adjustment range of 3 to 15 K)
Remote Bulb Sensor: yes
Comments: Scale plate is reversible for F and C applications
Product Number Action
LP920A1005 Direct Acting
LP920A1013 Direct Acting
LP920A1021 Direct Acting
LP920A1039 Direct Acting
LP920B1037 Reverse Acting 2
34 customer.honeywell.com
2-1/4
(57)
M18367
Number Scale Range
of
Pipes (F) (C)
2 30 F to 150 F -1 C to +66 C
2 30 F to 150 F -1 C to +66 C
2 30 F to 150 F -1 C to +66 C
2 30 F to 150 F -1 C to +66 C
30 F to 150 F -1 C to +66 C
Two-pipe, single temperature, pneumatic temperature controller
used to provide proportional control of pneumatic valves and
damper actuators in heating and air conditioning systems.
Replacement devices are available for Johnson, Powers,
Robertshaw, Barber-Colman, and older Honeywell two-pipe
pneumatic temperature controller.
• Fahrenheit or Celsius scales for all adjustments.
• Pilot operated for high capacity.
• Direct Acting (DA) and Reverse Acting (RA) models are available.
• Adjustable setpoint and throttling ranges.
• Scales in bold type for high visibility.
• Replaceable filter cartridge.
• Single point or averaging elements.
Typical coil discharge control
COIL
DA
M B
M
C5400
Typical mixed air control
E.P. DAMPER
RELAY OPERATOR
O.A.
LP920B
M B
REVERSE ACTING
SET 75F (24C)
T.R. 5F (3C)
Accessories:
314439 Duct Clip for Averaging Element
315904B 1/2 in. NPT stainless steel Well, 7 5/16 in. (186 mm) long
315046B Well, 1/2 NPT Copper, 7 1/2 in. (191 mm) long
Replacement Parts:
14001865-001 Filter Cartridge Assembly
14002172-001 Gage Tap repair Plug
Includes
8 ft (2.4 m) averaging element for duct mounting
3/8 x 5 1/4 in. (10 x 133 mm) bulb with 3 in. (76 mm) capillary, well mount
3/8 x 5 1/4 in. (10 x 133 mm) bulb with 10 in. (254 mm) capillary, integral
duct mount
3/8 x 5 1/4 in. (10 x 133 mm) bulb with 5 ft. (1.5 m) capillary, remote duct
mount
3/8 x 5 1/4 in. (10 x 133 mm) bulb with 5 ft. (1.5 m) capillary, remote duct
mount
70-6925
R.A.
COIL
N.O.
D.A.
N.C.
LP920A
M B
DIRECT ACTING
SET 55F (13C)
M
T.R. 10F (5.5C)
C6501